# RigMaster vs Calc Tools

The clearest difference is in-app purchases: Calc Tools at none against RigMaster's 3. Calc Tools also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. RigMaster sells 3 in-app purchases, starting at $4.99 per 7 days. Calc Tools asks for nothing beyond the download.

## The numbers

| Metric | RigMaster | Calc Tools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | — |
| Size | 5 MB | 9 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Grima Hdez](https://appshunter.io/developer/1741481582) | [Bond Innovations LTD](https://appshunter.io/developer/1837678853) |

## What reviewers say

### RigMaster

[App page](https://appshunter.io/ios/app/rigmaster-rigging-calculator/id6789944360)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Yearly | $29.99 | per year |
| RigMaster Pro | $39.99 | one-time |


### Calc Tools

[App page](https://appshunter.io/ios/app/calc-tools-construction/id6811398538)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RigMaster free?

RigMaster is free to download, with in-app purchases available.

### Is Calc Tools free?

Calc Tools is free to download, with no in-app purchases.

### Do RigMaster or Calc Tools have ads?

RigMaster shows ads; Calc Tools does not.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*